.centerbox{
  width: 85%;
  height: 100vh;
  display: flex;
  flex-wrap: wrap;
  //overflow: hidden;
}
.centerbox>div:nth-child(1){
  color:white;
  width: 100%;
  height: 20%;
  background-color: black;
}
.centerbox>div:nth-child(2){
  width: 100%;
  height: 80%;
  //background-color: black;
}
.IndexPage{
  display: flex;
  width: 100%;
  height: 100%;
}